[CMake] FIND_LIBRARY force?

[Miguel A. Figueroa-Villanueva]

Hello,

If I have a FIND_LIBRARY entry that depends on a variable, such as LIB_DIR here:

FIND_LIBRARY(XXX_LIB lib_name ${LIB_DIR}/lib)

How can I force the FIND_LIBRARY to run again upon changing the
LIB_DIR value. Regularly it won't do it because there is a XXX_LIB
entry for it already in the cache, right?

Thanks,
Miguel